JP4526359B2 - Vehicle door - Google Patents

Description

  The present invention relates to a vehicle door that opens and closes a door opening formed in a vehicle body. Specifically, the rigidity of an outer panel of a door body is increased, and the door is prevented from being locked in a side collision. It relates to the door structure.

  In general, an automobile door is formed by combining an outer panel and an inner panel to form a door body, a door lock device is disposed on the door body, and a reinforcing beam is attached to the inner side surface of the outer panel, The structure increases the rigidity of the outer panel. For example, in Patent Document 1, a reinforcing beam made of a steel pipe extending in the front-rear direction is disposed at an intermediate portion in the vertical direction in the door body, the reinforcing beam is fixed to the outer panel with an adhesive, and brackets are attached to both ends. The structure is welded to the inner panel.

On the other hand, in order to prevent the door from being locked at the time of a side collision, an automobile may include a lock control device that controls the door lock device to an unlocked state by an actuator at the time of a collision.
JP-A-6-72152

  By the way, in the case of a structure in which a reinforcing beam is arranged in the middle in the vertical direction in the door body as in the conventional case, it is difficult to secure the rigidity of the entire outer panel, and the outer panel is deformed even by a light collision from the side of the vehicle. There is concern that it will be easier. Here, it is conceivable to add another part to increase the tension rigidity of the outer panel, but there is a problem in that the number of parts increases.

  Further, as in the conventional case, when the door lock device is controlled to be unlocked by the actuator at the time of a side collision, the control device becomes expensive.

  The present invention has been made in view of the above-described conventional situation, and the rigidity of the entire outer panel can be increased without adding another part, and the door is locked at the time of a side collision with an inexpensive configuration. It aims at providing the door for vehicles which can be prevented.

  According to the present invention, a reinforcing beam extending in the vehicle front-rear direction is disposed in a door body formed by coupling an outer panel and an inner panel along the inner side surface of the outer panel, and a key disposed in the vicinity of the door handle of the outer panel. In a vehicle door in which a cylinder and a lock mechanism disposed below the key cylinder are connected by a link member that swings in a vertical direction, the reinforcing beam is a plurality of beam portions from a midway portion in the front-rear direction. One of the beam portions is arranged so as to be positioned in the vicinity of the locking mechanism, and the beam portion is engaged with the link member at the time of a side collision to move the link member in the locking direction. It is characterized by the formation of a restricting part to be restricted.

  According to the present invention, the reinforcing beam is branched from the midway portion into a plurality of beam portions, and one beam portion is arranged in the vicinity of the lock mechanism, so that the outer panel has a wide rigidity without adding another part. The deformation of the outer panel at the time of a light collision from the side of the vehicle can be suppressed. In addition, since the beam portion is disposed in the vicinity of the lock mechanism, it is possible to increase the surface rigidity of the outer panel against an impact when the door is opened and closed.

  In the present invention, the beam portion is formed with a restricting portion that engages with the link member at the time of a side collision and restricts the movement of the link member in the lock direction. The existing reinforcing beam can be effectively used to prevent the door from being locked, and the door can be opened after the collision.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 6 are views for explaining a vehicle door according to an embodiment of the present invention. FIG. 1 is a side view of a vehicle body on which the vehicle door according to the present embodiment is arranged. FIG. Sectional view of the main body (sectional view taken along line II-II in FIG. 1), FIG. 3 is a sectional view of the door main body (sectional view taken along line III-III in FIG. 1), and FIG. FIGS. 5 and 5 are diagrams of the reinforcing beam, and FIGS. 6A to 6C are cross-sectional views of the reinforcing beam (a-a line cross-section, a bb-line cross-sectional view, and a cc-line cross-sectional view in FIG. 5). It is.

  In the figure, reference numeral 1 denotes a vehicle body. In the vehicle body 1, the left and right side panels 2 and 2 and a roof panel 3 disposed between the upper ends of the left and right side panels 2 and 2. And the floor panel 4 disposed between the lower ends form a passenger compartment, a front door 5 is disposed in the front door opening 2a formed in the side panel 2, and the front wall portion of the front door 5 is The front pillar 6 is supported so as to be openable and closable via a pair of upper and lower door hinges 7 and 8.

  The front door 5 is provided with a door sash 10 connected to a door body 9 formed by joining an outer panel 9a and an inner panel 9b, and a wind glass 11 for opening and closing the window of the door sash 10 is disposed so as to be movable up and down. It has a structure. The door body 9 is formed by hemming the outer peripheral portion of the outer panel 9a having a substantially flat outer surface to the outer peripheral portion of the hat-shaped inner panel 9b in a plan view. The front wall portion and the rear wall portion 9b 'of the inner panel 9b are opposed to the front pillar 6 and the center pillar 18, respectively, when viewed in the vehicle front-rear direction.

  The front door 5 is provided with a door lock device 12. The door lock device 12 includes a door handle 13 disposed at the rear end portion of the outer panel 9a, a key cylinder 14 disposed near the lower portion of the door handle 13, and an inner panel 9b below the key cylinder 14. And a lock mechanism 15 attached and fixed to the rear wall portion 9b '. The lock mechanism 15 and the key cylinder 14 are connected to each other by a locking link 16 arranged in the vertical direction. An open lever 13 a connected to the door handle 13 is coupled to the lock mechanism 15.

  When the front door 5 is closed, the lock mechanism 15 engages with a door striker 19 fixed to the center pillar 18 to lock the front door 5 in the fully closed position, and the door handle 13 is opened to release the lock. It is configured as follows.

  Further, a lock lever 20 that switches the lock mechanism 15 to either a locked state or an unlocked state is coupled to the lock mechanism 15 via a lock pin 21 so as to be swingable up and down. The lock lever 20 is formed by integrally forming an elliptical lever portion 20b having a long hole 20c extending in the vertical direction in the lock portion 20a. The lower end portion of the locking link 16 is formed in the long hole 20c of the lever portion 20b. Are connected.

  When a key (not shown) is inserted into the key cylinder 14 and rotated in the locking direction, the locking link 16 moves upward to rotate the lock lever 20 around the lock pin 21, thereby Locked. As a result, the front door 5 is locked to the vehicle body 1 and cannot be opened by the door handle 13.

  When the key is rotated in the unlocking direction, the locking link 16 is moved downward, the lock lever 20 is rotated downward, and the lock mechanism 15 is brought into the unlocked state. Thereby, the lock of the front door 5 is released, and the opening operation by the door handle 13 becomes possible.

  A belt line rein hose 23 made of a pipe material extending in the vehicle front-rear direction along the belt line L is disposed in the door body 9. This belt line rein hose 23 transmits an input to the rear of the vehicle body by stretching between the front pillar 6 and the center pillar 18 at the time of a vehicle front collision, thereby preventing the door body 9 from being deformed.

  In addition, an impact beam 24 extending in the vehicle front-rear direction is disposed in the lower portion of the door body 9. The impact beam 24 is bent so as to have a substantially W-shaped cross section, and is joined to the inner side surface of the outer panel 9a via an adhesive. The impact beam 24 is disposed so as to be inclined downwardly in the rear of the vehicle so that the front end portion 24a is positioned at an intermediate portion between the upper and lower door hinges 7 and 8, and the rear end portion 24b is positioned at the lower end portion of the center pillar 18.

  A reinforcing beam 25 made of sheet metal is provided in the door body 9 and extends in the vehicle longitudinal direction. The reinforcing beam 25 is disposed at an intermediate portion between the beltline reinhose 23 and the impact beam 24. The beam main body 25a constituting the front half and the beam main body 25a are branched upward and downward. The extending upper and lower beam portions 25b and 25c are integrally formed.

  The upper beam portion 25b extends in a straight line continuously to the beam body 25a, and the lower beam portion 25c extends from the rear end portion of the beam body 25a in an obliquely downward rearward direction. The rear end portions of the upper and lower beam portions 25b and 25c are integrally connected by a cross portion 25d extending in the vertical direction. As a result, the reinforcing beam 25 has a generally lateral A-shape that branches off and extends from an intermediate part in the front-rear direction and extends in the vertical direction toward the rear of the vehicle.

  The beam body 25a and the upper beam portion 25b are formed in a wave shape in cross section, and the upper and lower flange portions 25e and 25e are fixed to the inner side surface of the outer panel 9a with an adhesive. The lower beam portion 25c is formed in a hat shape in cross section, and the upper and lower flange portions 25f and 25f are fixed to the inner side surface of the outer panel 9a with an adhesive.

  The front end portion of the beam body 25 a is located near the lower portion of the door hinge 7. The front end is formed with a joint 25a 'that is bent inward and extends, and the joint 25a' is joined to the front wall of the inner panel 9b by welding.

  The rear end portion of the upper beam portion 25b is positioned in the vicinity of the lock mechanism 15, and a part of the upper beam portion 25b is disposed so as to wrap when viewed in the vehicle width direction. The rear end portion is formed with a joint portion 25b ′ which is bent and extends inward, and the joint portion 25b ′ is joined to the rear wall portion 9b ′ of the inner panel 9b by welding. Further, the rear end portion of the lower beam portion 25 c is located near the lower portion of the lock mechanism 15. Also at the rear end portion, a joint portion 25c ′ bent inward is formed in the same manner as described above, and the joint portion 25c ′ is welded to the rear wall portion 9b ′ of the inner panel 9b. Thus, the lock mechanism 15 is surrounded by the upper and lower beam portions 25b and 25c and the cross portion 25d.

  A regulating portion 25g protruding downward is integrally formed with the lower flange portion 25e of the rear end portion of the upper beam portion 25b. The restricting portion 25g is formed so as to be engageable with the upper circle portion of the lever portion 20b at the lock position of the lock mechanism 15 when viewed in the vehicle width direction.

  That is, as shown in FIG. 4, when an impact force F is applied to the door main body 9 from the side of the vehicle, the reinforcing beam 25 is deformed and moved to the inside of the vehicle together with the outer panel 9a, and the restricting portion 25g of the reinforcing beam 25 is Engage with the upper edge of the lever portion 20b of the lock lever 20 in the locked position, and forcibly rotate the lock lever 20 in the unlocking direction (downward) to fix it in the unlocked position. Further, when the lock lever 20 is in the unlock position at the time of a side collision, the restricting portion 25g is engaged with the lever portion 20b as it is to prevent the lock lever 20 from moving in the locking direction (upward).

  Thus, according to the present embodiment, since the reinforcing beam 25 is branched into the upper and lower beam portions 25b and 25c following the beam body 25a, the tension rigidity of the outer panel 9b can be widened without adding another part. Therefore, the outer panel 9a can be prevented from being deformed by a light collision from the side of the vehicle.

  Further, since the rear end portion of the upper beam portion 25b is disposed in the vicinity of the lock mechanism 15, the surface rigidity of the outer panel 9a against the impact force during the door opening / closing operation can be increased.

  In the present embodiment, the upper beam portion 9b is formed with the restriction portion 25g that engages with the lever portion 20b of the lock mechanism 15 at the time of a side collision and restricts the movement of the lever portion 20b in the lock direction. Without adopting the control device, the existing reinforcing beam 25 can be effectively used to prevent the front door 5 from being locked, and the door after the collision can be opened from the inside and outside the room.

1 is a side view of a vehicle body of an automobile provided with a vehicle door according to an embodiment of the present invention. It is sectional drawing (II-II sectional view taken on the line of FIG. 1) of the said door main body. It is sectional drawing (the III-III sectional view taken on the line of FIG. 1) of the said door main body. It is a lineblock diagram of the door lock device seen from the vehicles front. It is a figure of the reinforcement beam arrange | positioned at the said door main body. FIG. 6 is a cross-sectional view of the reinforcing beam (a-a line cross-sectional view, a bb cross-sectional view, and a cc cross-sectional view in FIG. 5).

Explanation of symbols

5 Front door 9 Door body 9a Outer panel 9b Inner panel 13 Door handle 14 Key cylinder 15 Lock mechanism 20 Lock lever (link member)
25 Reinforcement beam 25b, 25c Beam part 25g Restriction part

Claims (1)

  A reinforcing beam extending in the vehicle front-rear direction is disposed in a door body formed by coupling the outer panel and the inner panel along the inner side surface of the outer panel, a key cylinder disposed in the vicinity of the door handle of the outer panel, In the vehicle door connected to the lock mechanism disposed below the key cylinder by a link member that swings in the vertical direction, the reinforcing beam is branched into a plurality of beam portions from a midway portion in the front-rear direction. Any one beam part is disposed so as to be positioned in the vicinity of the lock mechanism, and the beam part is engaged with the link member at the time of a side collision to restrict the movement of the link member in the lock direction. A vehicle door characterized in that is formed.

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